Method for winding silk on spools and machine for carrying out this method.



C. MA'ZZUCCHELLI. METHOD FOR WINDING SlLK ON SPOOL'S AND MACHINE FORCARRYING OUT THIS METHOD. APPLICATION FILED DEC. 5. 1913.

1,267,099. Patented May 21', 1918.

2 SHEETSSHEET 1.

C, NIAZZUCCHELLI.

METHOD FOR WINDING SIIK 0N SPOOLS AND MACHINE FOR CARRYING OUT THISMETHOD.

APPLICATION FILED DEC. 15. 19I3.

Patented May 21, I918.

2 SHEETS-SHEETZ.

i ifneww UNTTED PATENT @FFTQE CELESTINO IVEAZZUCCI-TELLI, F C0310,ITALY.

METHOD FOR WINDING SILK 01\T SPOOIS AND MACHINE FOR. CARRYING OUT THISMETHOD.

Application filed December 15, 1913.

To all whom it may concern Be it known that I, OELESTINO MAZZUC- oHnLLI,a subject of the King of Italy, residing at Como, Via Briantea 1, Italy,have invented new and useful Improvements in Methods for Winding Silk onSpools and Machines for Carrying Out These Methods;

' and I do herebydeclare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same, reference being hadto the accompanying drawings, and to letters or figures of referencesmarked thereon, which form a part of this specification.

This invention relates to an improved method for winding silk on spoolsand to amachine for carrying out this method.

In the hitherto known winding machines there are to be found twodiiferent methods for rotating the spools. According to one of thesemethods the spool is fixed upon an iron spindle and it is carriedtogether with this spindle by a bifurcated support. The support, or thespool, is then pressed against a rotatin pulley, so that the spool isrotated by the fraction produced with a uniform pe ripheral velocity,which corresponds to that of the pulley.

According to the second known method the spool is pushed. onto a spindlehaving at one end a head with a diameter of 13 -12 inches; this head isbrought in contact with a small pulley, whose width corresponds to thatof'the spindle head. The friction produced causes a rotation of thespindle and therefore also of the spool. According to this method theperipheral velocity of the spool increases gradually with the increasingdiameter of said spool, while the silk is wound upon the latter.

, Both these known methods have, however, the following drawbacks: Theangular velocity of the reel does notremain absolutely the same. If, forinstance, the thread is not loosened in the proper manner from thestrand, the spool, or the spindle head slips on the pulley and the reelis brought to a standstill till the increased pull loosens theSpecification of Letters Patent.

Patented May 21, 1918.

Serial No. 805,816.

thread, whereupon the reel is again rapidly rotated. Since the reel has,however, a much greater diameter than the spool its gyrating massimparts to this reel suddenly a greater velocity. During this period thethread is wound on the spool in a slack manner. Hereupon the angularvelocity of the reel decreases gradually till it corresponds again tothat of the spool. During this period the thread is wound up in a tightmanner.

These periods change continually in an irregular manner, so that thethread is wound up sometimes in a slack and sometimes in a tight manner.

According to the method of the present invention the thread leaving thereel is not fed directly to the spool. but passes at first around alarge drum, acting as a guide for the thread and serving at the sametime for driving the spool. After the thread has been passed once aroundsaid thread-guiding drum it is wound in a known manner on the spool; thehereinbefore mentioned drawback being thereby entirely eliminated.

The invention relates further to brakemeans for the reel provided on amachine for carrying out this improved method, to means for carrying thethread once around the drum while this machine is stationary. and tomeans for stopping the machine as soon as the thread breaks or as soonas a spool is wound up.

A convenient mode of carrying the invention into effect is shown by wayof example in the accompanying drawings in which:

Figure 1 shows a front elevation of the winding machine, there beingomitted several parts on the left hand side of the machine for the sakeof clearness;

Fig. 2 shows a plan sectional view on the line AA of Fig. 1, somefurther parts being omitted for the sake of clearness;

Fig. 3 shows on an enlarged scale a front elevation of a part of themachine;

Fig. A shows a detail,

Figs. 5 and 6 show in a further detail and Fig. 7 shows-a modificationof a detail.

front and plan view In the illustrated machine 1 denotes the reel fromwhich the silk thread 2 is reeled off. The thread drawn off the reelpasses then over a thread-guide 3, and if one wishes to clean at thesame time the silk, saidlthread I is also passed through a cleaningappliance 1. Hereupon the thread 2 is passed directly onto a large feeddrum 5. '6 denotesthe spool, the spindle of which is supported in abifurcated'lever 7 pivotally connected to a frame part 8. The lower endof this ilever 7 carries a weight which has the tend- .euoy to rotate,the lever 7 in a counterclockwise direction, tl uspressing thespool 6agalnst the drum 5, so that snfhcient adhesion is imparted to the threadto remain in contactv with said drum 5. The thread .passes, while anequal tension is exerted upon it once around sa d. drum and it'thencrosses the :thread ,reeledofi'the reel 1 .to be fed over a thread guide9 mounted on ,the small pivotally arranged lever 10 and the :threadguide 111, fixed :to the reciprocating .this drumthetensionsinthekthread are com- ,pletely equalized.

The thread guides and 9 .are disposed in such a manner that the .threads'do-not touch one another at the crossing point.

This arrangement permits very thin silk threads to be-reeled off andwound up with lnuch greater velocities than heretofore.

For eachthread guide drum 5,th erevis provideda rope drive 13;transinitting.thedrive from the Inaindrh'ing shaft l-l to a pulley 5 .mountedon the same shaft as said drum. Adjacent to each -pulley5 there isprovided a brake disk 5 The drums 5 arecarried by bifurcated levers 15pivotally connected atf16. to tl1e=machine frame 17. To these levers15;are pivotally connected the bell crank levers 1.8, which :effect intheir difierent positions a stoppage-or running of the machine. Thelower end of; each bell cranklever 18 rests on thetaloutment 19 of themachine frame. If

the :lever 18 {isin the position shown. in Fig. 3 the ropednive 13 istensioned and the thread guiding drum and driving pulley 5 is rotated.

In order to stop the machine when the thread isbroken orto pass thethread around the pulley 5 the hfitl'ldlGrOf :the locking :lever 18 ismoved in the .direction of the arrow B shown in Fig. 3, the lower end ofthis lever being then lifted. Owing to the action of its own Weight thedrum 5 the brake disk 5 is now pressed against thebrake shoe 20pivotally attached at 37 to the machine frame. This causes a slackeningof the rope drive 13 and the drum 5 is therefore brought .to astandstill.

On the supporting lever '7 carrying the spool Gthere is provided a nose2-1=-( Fig. 3)

and on a bracket-like part of the machine frame 17 is pivotally attacheda lever 22. F or the purpose of changing the spool:6 -.or of knottingabroken thread the lever 7 is rotated in the direction of the arrow Cshown in Fig. 3 till said,.nose 21engages the catch lever 22-.

' In or e to .put .the thread gi d ng dru .5 again in ,m'otionthe lever15 is niove d in .the direction of the arrow B shownln ,E g. till thelower endofthelever 18 rests 011113116 abutment 19, tl1e.rope.. drive.13 being then tightenedassoon as the parts areiagain in the positionshown i111? Fig. .4 illustrates a. partofthe r m ofthe thread-guidingdrum in .its natural size. As shown in this figure there,ispivotallypon-.nectedto .the .innerfrim, 1: arta lever ,or. catch 23 provided withabolt24 projecting in a hole 25 of saiddrum 5. Tl1e;lever 23 isacted,upon-by a flat spring 26 normally preventing said bolt 24 fromprojecting beyondthe circumferenceof the drum .5.

.For the purpose of gu dmg thethread 2 around therdrum .5attire-beginning of the winding operation and when the machine ;is stillstopped, the .lever 23 is pressed .by hand against the action .of thespr ng ;.26 ,toward the rim, so:that.thebolt2eis broughtto proect beyondthe circumference 'of. the .dr nn 5. The thread,reelechoffthe reel 1and-pass ing overthe guide 3 and between the cleaner 4: is wound severaltimes around the-bolt 24.

ward in;th edirection of;the arrow-D shown in Fig. ,3,:soythatiteomesout-.of-engagc- 'ment with the ;nose and ;tl1e;supporting ;lever ,7carrying the spool 6 s again 7: pressed against the drum 5 inejorder torotatesaid spoolfi.

I shall now describe the means ,for stopping .the machine .as soon-asthe 'thread2 breaks- ,T0 :the shorter l e d. f .th her efore mentionedoscillating lever '10 there 31S attachedaa vertical rod 27 guided-atjts.lower end in. arsupport 2S carried 1by;.the 1nach1ne Illl'fllllfllY. 0ntheloWer end of;the-;ro d;27

there is provided a stopor collar 29. To a sleeve like projectionprovided on the lower end of the lever 18 there is pivotally attached ata short lever 31 resting on an eccentric disk 32. The axis 33 on whichare mounted the eccentric disks 32 receive its drive from the maindriving shaft 1 1 by means of a rope drive 34:.

As soon as a thread is broken, the thread guide 9, normally held down bythe thread tension, is raised by the vertical rod 27 which drops; thecollar 29 provided on this rod is therefore lowered and owing to theaction of the spring 36 upon said rod it is moved beneath the stop ofthe support 28. The continually rotating eccentric disk 32 causes acontinual up and down movement of the short lever 31. As soon, however,as the rod 27 has been lowered the right hand end of said lever 31strikes against the lower end of the rod 27, so that said end of thelever is prevented from further moving and the opposite end with itspivot 30 will now be raised. This brings the lower end of the bell cranklever 18 out of engagement with the stopping traverse 19 and the weightof the drum 5 causes the latter to swing in an anticlockwise direction,so that its brake disk 5* is brought in contact with the brake shoe 2Ooscillating around the pivot 37. A further rotation of the drum 5 isthen prevented.

To the other end of the brake shoe 20 there is connected a vertical rod38, which is bifurcated at its upper end and reaches normally nearly upto the grooved hub 42 of the reel 1 without, however, touching said hub12. The axis 39 of the reel 1 (Figs. 5 and 6) is supported at both ends(in the figures there is shown only one end of this axis) by rollers 40carried by a frame 41. This secures a very easy running of the axis 39of the reel 1, the resistance produced being very small. When the brakedisk 5 provided on the same axis as the drum 5 touches the brake shoe20, the vertical rod 38 is raised, so that the reel 1 is also raised andprevented from turning owing to brake action exerted by said rod 38 uponthe hub 42. Owing to the fact that a brake action is exerted upon thereel 1 as soon as the thread is broken, this broken thread cannotentangle when the reel is further rotated; on the contrary said brokenthread can easily be found.

1 shall now further describe how the ma chine is stopped when the spool6 has been wound up. a. I. when the spool 6 has the desired thickness.As the diameter of the spool 6 increases, the supporting lever 7 ismoved in the direction of the arrow C shown in Fig. 3, so that the lowerend of this lever is raised. When sulficient thread has been wound uponthe spool 6 the lower end of said lever 7 strikes against the pin 13(Fig.

'3) provided on the lower end of the bell crank lever 18. The latter istherefore brought out of engagement with the abutunderstood that thereare provided on eachmachine several groups of such reels and drums, asshown in Fig. 2, actuated from a common driving shaft let but workingfor the rest independently one from another.

Fig. 7 shows a modification of the means for carrying the thread 2 oncearound the drum 5 when the machine is stopped. According to thismodification the bolt or pin 24 around which the thread has to be woundis acted upon by a flat spring 44 guided by means of pins 4:5 screwedinto the rim of the drum 5. If the thread has to be wound around the pin24 at the beginning of the reeling operation, the spring 4a is pressedagainst the rim of the drum 5 to be released as soon as said operationis performed.

What I claim is 1. A thread winding machine comprising a thread feedingdrum, and a thread holding device on the drum for drawing the threadaround the latter at the beginning of the unreeling operation.

2. In a thread winding machine, a feeding drum, a thread holding memberthereon comprising a bolt arranged to be projected through the peripheryof the drum, and a spring for normally holding the bolt retracted.

3. In a thread winding machine, a feeding drum, a thread holding devicecomprising a lever pivoted on the inner periphery of the drum, a bolt onthe lever adapted to be projected through the periphery and a springacting on the lever to withdraw said bolt.

4. In a thread winding mechanism the combination with a threadsupporting reel, of a thread feed drum around which the thread is oncepassed, a pivoted lever supporting the drum, means to guide the threadonto and ed of the drum, a drive for said drum drawing the thread fromthe reel, a winding-on spool arranged to receive the thread from thedrum, means to yieldingly hold the spool in contact with the drum torotate said spool, athread guide reciprocating in a direction parallelto the axes of said drum and guide, and means actuated by said spoolholding means to permit the drum to move out of driving contact withsaid spool when the latter is full.

5. The method of winding silk fiber .-.mm ol-thh patent may be obtainto:

which comprises directing the fiber from the supply reel downwardtoadriving drum capable of swinging out of operative position andsimultaneously bending the fiber toward e vertical, said fiber passingaround said drum and crossing the downwardly directed portion,thereafter directing the,

fiber to a spool frictionally driven by the contact of said drum withthe fiber wound 10 upon the spool, the fiber being fed to the spoolsubstantially at the nip between the drum andspool.

In testimony that I claim the foregoing as my invention, I have signedmy name in Witnesses "HANS IERNY. LYLE RoBB.

he cents each, :addreningthe commissioner pt Patents, Washington, D. G.v

